Hash Sets

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Collection that stores unique elements using hashing. Provides O(1) average membership testing and deduplication.

Key Properties

• Membership Testing
• Deduplication

Complexity

• Insert O(1), Contains O(1), Delete O(1) — all average case.

Related

• Hash Tables (implementation — set is a map with only keys)
• Bloom Filters (space-efficient approximate alternative)

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data-structures hashing hash-sets